Patent US4482885A successfully refreshed from Google Patents.
US2985556A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of spectacle frames
Assignee: Rowland Products Inc
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Filing: 1959-03-12
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Granted: 1961-05-23
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Expires: 1979-03-12
Abstract
No abstract record available.
Inventors
- 👤 William P Rowland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:32
CPC Classifications
G; G02; G02C; G02C5/00; G02C5/008; B; B29; B29C; B29C48/00; B29C48/03; B29C48/06; B29C48/07; B29C48/08; B29C48/16; B29C48/17; B29C48/18; B29C48/21; B29C48/25; B29C48/30; B29C48/305; B29C48/307; B29C48/36; B29C48/49; B29D; B29D12/00; B29D12/02; B29C48/175; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1062; Y10T156/1066; Y10T156/1075
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
THE METHOD OF MAKING PLASTIC MATERIAL PARTS WHICH COMPRISES FORMING A LIGHT-TRANSMITTIBLE COMPOSITE RECTILINEAR STRIP HAVING SUBSTANTIAL RIGIDITY AT ORDINARY TEMPERATURES BY UNITING TO A RECTILINEARLY-SHAPED BASED LAYER OF LIGHT-TRANSMITTIBLE PLASTIC MATERIAL OF A GIVEN COLOR AND OF SUBSTANTIAL RIGIDITY AT ORDINARY TEMPERATURES, A SECOND LAYER OF A DIFFERENTLY COLORED LIGHTTRANSMITTIBLE PLASTIC MATERIAL HAVING AN AREA OF MAXIMUM THICKNESS AND DIMINISHING IN THICKNESS FROM SUCH AREA AND FOR A MAJOR PART OF THE WIDTH OF SUCH SECOND LAYER TOWARD A LONGITUDINAL EDGE THEREOF, AND CONTROLLING THE THICKNESS OF SAID LAYERS SO THAT THE RESULTING COMMITTING LIGHT, AND CUTTING SUCH COMPOSITE STRIP TO PRODUCE A PART HAVING A GRADIENT COLOR APPEARANCE.
Claim 2
Independent Claim
110 words
THE METHOD OF MAKING PLASTIC MATERIAL PARTS WHICH COMPRISES FORMING A LIGHT-TRANSMITTIBLE COMPOSITE RECTILINEAR STRIP HAVING SUBSTANTIAL RIGIDITY AT ORDINARY TEMPERATURES BY UNITING TO A RECTILINEARLY-SHAPED BASED LAYER OF LIGHT-TRANSMITTIBLE PLASTIC MATERIAL OF A GIVEN COLOR AND OF SUBSTANTIAL RIGIDITY AT ORDINARY TEMPERATURES, A SECOND LAYER OF A DIFFERENTLY COLORED LIGHTTRANSMITTIBLE PLASTIC MATERIAL HAVING AN AREA OF MAXIMUM THICKNESS AND DIMINISHING IN THICKNESS FROM SUCH AREA AND FOR A MAJOR PART OF THE WIDTH OF SUCH SECOND LAYER TOWARD A LONGITUDINAL EDGE THEREOF, AND CONTROLLING THE THICKNESS OF SAID LAYERS SO THAT THE RESULTING COMMITTING LIGHT, AND CUTTING SUCH COMPOSITE STRIP TO PRODUCE A PART HAVING A GRADIENT COLOR APPEARANCE.
References Cited (Backward Citations)
US2842028A
Cited
US1005454A
Cited
US1465423A
Cited
US1510001A
Cited
US1649516A
Cited
US2101540A
Cited
US2158755A
Cited
US2397243A
Cited
US2722720A
Cited
US2736921A
Cited
US2677634A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-22 | 1964-11-21 | 1965-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-22 | 1968-11-21 | 1969-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-22 | 1972-11-21 | 1973-05-23 | $7700.00 | Window Closed / Lapsed |